Insulation Material Class; Surface; Shaft End, A-Side; Shaft Seal - Kollmorgen AKM Série Manuel D'installation

AKM Installation | 1 English

1.4.5 Insulation material class

The motors come up to insulation material class F according to IEC 60085 (UL1446 class F).

1.4.6 Surface

The motors are coated with polyester powder coating in matte black. This finish is not res-
istant against solvents (e.g. trichlorethylene, nitro-thinners, or similar).

1.4.7 Shaft end, A-side

Power transmission is made through the cylindrical shaft end A, fit k6 (AKM1: h7) to
EN 50347, with a locking thread but without a fitted keyway.
Motors are also available with keyway and inserted key according to DIN 6885. The shaft
with keyway is balanced with short (half) key.
Bearing life is calculated with 20.000 operating hours.
Order code Shaft end
N
C
K
Radial force
If the motors drive via pinions or toothed belts, then high radial forces will occur. The per-
missible values at the end of the shaft may be read from the diagrams in chapter "Drawings"
from (➜ # 186). The maximum values at rated speed you will find at the technical data from
(➜ # 167). Power take-off from the middle of the free end of the shaft allows a 10% increase
in F
Axial force
When assembling pinions or wheels to the axis and use of e.g. angular gearheads axial
forces arise. The maximum values at rated speed are found in the technical data.
Coupling
Double-coned collets have proved to be ideal zero-backlash coupling devices, combined, if
required, with metal bellows couplings.

1.4.8 Shaft seal

If AKM is connected to a machine flange with unsealed shaft region, then the shaft seal
(option "01") ensures the shaft sealing.
The Teflon shaft seal ensures the IP67 protection for the shaft area.
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The rated performance is achieved after some hours of shaft seal run-in. No special pro-
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cedure for run-in is needed.
Some "shedding" of Teflon material is normal and does not affect the function.
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Shaft seal operation in dry-running mode is prohibited. Contact Kollmorgen for special shaft
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seal solution in case the dry-running operation is required.
Shaft seal is pre-lubricated by FDA grease.
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1.4.9 Protective device

The standard version of each motor is fitted with an electrically isolated PTC (rated
temperature 155°C ± 5%). The PTC does not provide any protection against short, heavy
overloading.
The motor can be delivered with a PT1000 or KTY 84-130 sensors optionally (see Connector
Options 1, 2, 7 and D on (➜ # 200)(➜ # 12).
16 Kollmorgen | kdn.kollmorgen.com | June 2018
Smooth shaft
Keyway, closed
Keyway, open
.
R
Available for
all types, standard
AKM 2...8
AKM 1...8